Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The average high-temperature in Dillingham slightly decreases in December, shifting from 27.7°F (-2.4°C) in November to a still subzero cold 21.6°F (-5.8°C). In Dillingham, the nighttime temperature shows a slight difference from the daytime high, averaging to an extreme cold 13.8°F (-10.1°C) during December.Humidity
The average relative humidity in December is 87%.Rainfall
In Dillingham, in December, it is raining for 7.8 days, with typically 2.36" (60mm) of accumulated precipitation. In Dillingham, Alaska, during the entire year, the rain falls for 142.3 days and collects up to 25.12" (638mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Dillingham, during December, snow falls for 11.5 days and regularly aggregates up to 6.1" (155mm) of snow. Throughout the year, there are 67.5 snowfall days, and 34.53" (877mm) of snow is accumulated.Ocean temperature
In Dillingham, the average seawater temperature in December is 35.4°F (1.9°C).Note: While participating in swimming, this is a serious life-threatening situation. Breathing becomes unmanageable, making lucid thinking almost impossible. The use of a specialized swimsuit is crucial to control thermal loss.
Daylight
With an average of 6h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 10:02 am and sunset at 4:43 pm. On the last day of December, sunrise is at 10:27 am and sunset at 4:47 pm AKST.
Sunshine
With an average of 2.9h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 1 during December translates into the following directions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the water temperature in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December in Dillingham?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Dillingham, AK
- Average high temperature in December: 21.6°F
The warmest month (with the highest average high temperature) is July (62.4°F).
The month with the lowest average high temperature is January (17.4°F).
- Average low temperature in December: 13.8°F
The month with the highest average low temperature is July (49.1°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).
Average pressure in December
Dillingham, AK
- Average pressure in December: 29.61"Hg
The month with the highest atmospheric pressure is July (29.95"Hg).
The month with the lowest atmospheric pressure is December (29.61"Hg).
Average wind speed in December
Dillingham, AK
- Average wind speed in December: 10.7mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is June (7.9mph).
Average humidity in December
Dillingham, AK
- Average humidity in December: 87%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (68%).
Average rainfall in December
Dillingham, AK
- Average rainfall in December: 2.36"
The wettest month (with the highest rainfall) is October (2.83").
The driest month (with the least rainfall) is June (1.42").
Average rainfall days in December
Dillingham, AK
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is August (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in December
Dillingham, AK
- Average snowfall in December: 6.1"
The month with the highest snowfall is February (7.4").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Dillingham, AK
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is March (11.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average sea temperature in December
Dillingham, AK
- Average sea temperature in December: 35.4°F
The best month for swimming (with the highest average sea temperature) is August (54.3°F).
The coldest month (with the lowest average sea temperature) is February (31.6°F).
Average daylight in December /
Average sunshine in December
Dillingham, AK
- Average daylight in December: 6h and 2min
The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is June (Average sunshine: 8h and 42min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in December
Dillingham, AK
- Average sunshine days in December: 14.1 days
The month with the most sunshine days is March (16.2 days).
The month with the least sunshine days is August (11.2 days).
Average UV index in December
Dillingham, AK
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Dillingham, AK
- Average cloud cover in December: 57
The month with the most cloud cover is August (Cloud cover 62).
The months with the least cloud cover are June and November (Cloud cover 54).
Average visibility in December
Dillingham, AK
- Average visibility in December: 6mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).
Dillingham, Alaska, USA
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